Pith Number

pith:LZWYASLZ

pith:2019:LZWYASLZEHA4X5A7NEZCWEK5HV

not attested not anchored not stored refs pending

Symmetric Powers and Eilenberg--Maclane Spectra

Krishanu Sankar

arxiv:1904.01708 v1 · 2019-04-02 · math.AT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LZWYASLZEHA4X5A7NEZCWEK5HV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:49:30.078470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e6d80497921c1cbf41f69322b115d3d4bf26032ef2dd8862d87e5dbbab0771e

Aliases

arxiv: 1904.01708 · arxiv_version: 1904.01708v1 · doi: 10.48550/arxiv.1904.01708 · pith_short_12: LZWYASLZEHA4 · pith_short_16: LZWYASLZEHA4X5A7 · pith_short_8: LZWYASLZ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/LZWYASLZEHA4X5A7NEZCWEK5HV \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 5e6d80497921c1cbf41f69322b115d3d4bf26032ef2dd8862d87e5dbbab0771e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00903f5b721ee3aa17bd58236bef86437d369d3a9a4cbfcf3de353ac76edc869",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-04-02T23:28:12Z",
    "title_canon_sha256": "611f66d6018ea56739e846445e5c01db3c3c4ce576ba43e73680a5cd19fa7078"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01708",
    "kind": "arxiv",
    "version": 1
  }
}